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Finding the Fourth Proportional to 119,652.29, 165,121.25 and 65,939.22

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Solution

The fourth proportional to 119,652.29, 165,121.25 and 65,939.22 is: 90,996.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,652.29 : 165,121.25 = 65,939.22 : x
  2. Step 2: Convert to fraction form
    119,652.29/165,121.25 = 65,939.22/x
  3. Step 3: Cross multiply
    119,652.29x = 165,121.25 × 65,939.22
  4. Step 4: Simplify right side
    119,652.29x = 10,887,966,100.73
  5. Step 5: Solve for x
    x = 10,887,966,100.73/119,652.29
  6. Step 6: Final answer
    x = 90,996.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.